STS Symantec Backup Exec 2010 STS Symantec Endpoint Protection 12.1 STS Symantec Backup Exec 2012 SSE+ Symantec Backup Exec 3600 Appliance (mid-market) (September 2012) SSE+ Symantec Endpoint Protection Small Business Edition (April 2014) SSE+ Symantec Backup Exec 2014 SSE+ Symantec Endpoint Protection 12.1 (August 2014)